 html,
 body {
     padding: 0;
     margin: 0;
     background-color: #f5f5f5;
 }

 html,
 body,
 #app {
     height: 100%;
 }

 textarea {
     border: none;
     outline: none;
 }

 button {
     border: none;
     outline: none;
 }

 a {
     text-decoration: none;
     color: #333;
 }

 li {
     list-style-type: none;
 }